The first time Boris Karloff and Bela Lugosi shared billing, it was in 1934's The Black Cat. It might have been inspired by Poe but that's about the extent of it. Instead, it's a tale of revenge that ends with an incredibly creepy climax for 1934...which apparently was originally to be even more explicit. (Sort of surprised nobody's come along to remake the thing.) The version we have here isn't the clearest in the world, but it's worth watching regardless to see these two go toe to toe on screen. Fantastic moments.
Oh, and one post script. This snippet is so bizarre I just have to share it: apparently to publicize the film, Karloff and Lugosi judged a black cat contest. Or something. Showing here.